Poly(vinylbenzyl chloride-glycidyl methacrylate)/polyethylene composite anion exchange membranes for vanadium redox battery application

Min A. Park, Joonmok Shim, Se Kook Park, Jae Deok Jeon, Chang Soo Jin, Ki Bong Lee, Kyoung Hee Shin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Anion exchange membranes for a vanadium redox flow battery (VRB) were prepared by pore-filling on a PE substrate with the copolymerization of vinylbenzyl chloride (VBC) and glycidyl methacrylate (GMA). The ion exchange capacity, water uptake and weight gain ratio were increased with a similar tendency up to 65% of GMA content, indicating that the monomer improved the pore-filling degree and membrane properties. The vanadium ion permeability and open-circuit voltage were also investigated. The permeability of the VG65 membrane was only 1.23 × 10-7 cm2 min?1 compared to 17.9 × 10-7 cm2 min-1 for Nafion 117 and 1.8 × 10?7 cm2 min-1 for AMV. Consequently, a VRB single cell using the prepared membrane showed higher energy efficiency (over 80%) of up to 100 cycles compared to the commercial membranes, Nafion 117 (ca. 58%) and AMV (ca. 70%).

Original languageEnglish
Pages (from-to)1651-1655
Number of pages5
JournalBulletin of the Korean Chemical Society
Volume34
Issue number6
DOIs
Publication statusPublished - 2013 Jun 20

Keywords

  • Anion exchange membrane
  • Glycidyl methacrylate
  • Vanadium redox battery
  • Vinylbenzyl chloride

ASJC Scopus subject areas

  • Chemistry(all)

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